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Pramana

, Volume 40, Issue 1, pp 31–34 | Cite as

Inflationary solutions in general scalar tensor theory of gravitation

  • A Banerjee
  • S B Dutta Choudhury
  • N Banerjee
  • A Sil
Article

Abstract

Extended inflation solution in Brans-Dicke theory given by Mathiazhagan and Johri (MJ) is shown as the unique solution only if the scale factor is assumed to be a power function of the scalar field. Only the consistent solution amongst the set of solutions given by Patra, Roy and Ray is found identical to the MJ solution. Both exponential inflation and power function inflation are studied in general scalar tensor theory where the parameter to is a function of the scalar, field. It is noted that exponential inflation is forbidden in Brans-Dicke theory wherew is a constant.

Keywords

Cosmology inflation scalar tensor theory 98·80 04·20 

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Copyright information

© Indian Academy of Sciences 1993

Authors and Affiliations

  • A Banerjee
    • 1
  • S B Dutta Choudhury
    • 1
  • N Banerjee
    • 1
  • A Sil
    • 1
  1. 1.Relativity and Cosmology Research Centre, Department of PhysicsJadavpur UniversityCalcuttaIndia

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